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Bromination of 5-Substituted 3H-Furan-2-ones and 3H-Pyrrol-2-ones

Research paper by A. Yu. Egorova, V. A. Sedavkina

Indexed on: 01 Nov '02Published on: 01 Nov '02Published in: Chemistry of Heterocyclic Compounds



Abstract

The bromination of 5-alkyl(aryl)-3H-furan-2-ones and 5-alkyl(aryl)-3H-pyrrol-2-ones and also their derivatives takes place at the ethylene bond with the formation of 4-monobromo derivatives. N-Phenyl-3H-pyrrol-2-ones are brominated simultaneously at the ethylene bond of the heterocycle and at the phenyl substituent at the nitrogen atom.